Sheila Braggins............................... "The Mysteries of the Voice". - a biography of Alfred Wolfsohn (available from the publisher)
Ralf Peters................................................."Wege zur Stimme"..........................20 € (including postage)
Books available :
"Dark Voices" by Noah Pikes: unavailable and awaiting reprint.
"La Voix de l'Ouïe" by Marianne Ginsbourger: out of print
"Prophet of Song" by Paul Newham: out of stock